Hot Bodies

Model Vida Guerra -- famous for her backside -- had emergency surgery on her other money-maker yesterday -- replacing a breast implant that was creating a serious health crisis ... TMZ has learned.

Vida posted a pic of her exposed chest Tuesday morning ... showing her right breast covered by a large gauze pad. The problem was scar tissue forming around a gel implant.

Vida tells us back in 2011 she replaced saline implants with fancy new gel ones -- 450cc (or a full C cup). When she recently started having back pain and trouble breathing ... docs told her scar tissue had formed and had to be removed, along with the implant itself.

Vida got a new left implant during her 24 hour hospital stay -- but she's home now, doing something she never gets to do ... PIG OUT!!!

The fitness fanatic confesses she's been eating "everything in sight" ... especially pizza. Docs have cleared her to start working out again in a month.

Boob job lesson of the day: Vida says, "If I could do it over again, I wouldn't have. It's just more problems in the end."

And the front.

What's good for the Miley is good for Vanessa Hudgens -- and GREAT for us to watch ... because the former Disney star opened up her own twerking clinic last night.

Vanessa performed with her new girl group YLA at Bootsy Bellows -- doing some singing, some dancing ... and then tried like Hell to shake her ass right out of her booty shorts.

Here's the thing ... Miley Cyrus caught major flack for displaying a lack of back during her VMA twerkfest. Does Vanessa's ass action deserve the same ... or does it get a pass?

Butt legends Kim Kardashian and Blac Chyna unleashed their A-bombs on an unsuspecting public this afternoon ... potentially scarring millions.

Kim was dressed like a fighter pilot -- armed with massive cleavage -- and convened with Nicki Minaj BC for a derriere summit (lunch date) of the Asses Powers.

So, Selena Gomez was hanging out with alleged Illuminati member Donatella Versace in Italy Friday for Milan Fashion Week.

We're not saying Selena's being tapped to join up, but we will say DAYUM she looked hot.

Selena - 1
Bieber - 0

Christina Aguilera flaunted her hot new bod last night ... but it wasn't her body people are talking about ... it's her face -- because it looks ... well, different.

She didn't explain how she did it last night on "The Tonight Show with Jay Leno."

So we gotta ask...

Chrissy Teigen's intentional nip slip during a music video shoot with fiancé John Legend was the kind of thing we've come to expect (and appreciate) from the S.I. swimsuit supermodel.

But John's bare areola? Yeah, that caught us off guard.

She's 71 years old ... but that didn't stop legendary designer Betsey Johnson from doing a FULL SPLIT on stage Wednesday at Fashion Week ... while wearing a hilarious pair of pink briefs.

Who knows, maybe she's got an extremely high threshold for pain ... she is holding what appears to be a prescription pill bottle after all.

Sports Illustrated supermodel Chrissy Teigen just posed for a topless photo shoot with her fiance John Legend ... and now one of the topless pics has surfaced on the web.

But Chrissy ain't mad ... in fact, the person who posted the pic is the photographer -- and right after it hit Tumblr, Chrissy retweeted it and joked, "I figure you can't be suspended from a retweet."

The photo appears to be a frame from John's music video for his song, "All Of Me."

As of 8:11 AM PT, the photo is still up on Instagram ... but if you wanna see it, you better act fast -- we're guessing it won't be up long.

Until she turns 18.

Take a good long look ... at these words. JK, get back to staring at these famous ya-yas -- because that's the only way you can dominate ... 'Guess the Chest!'

And for the complete package -- don't miss our bonus round!

Tyson Beckford IS TERRIBLY ILL ... succumbing to a powerful strain of the Justin Bieber virus that's been wreaking havoc on the nation.

Beckford was photographed out in NYC Tuesday, showing the telltale symptom of the gruesome disease ... a shirtless, hairless torso.

Beckford kept a smile on his face despite his condition, but if Bieber's any indication, the prognosis isn't good. It's not good at all.

Tyson Beckford ... we hardly knew ye.

Two indisputable facts: 1. Paul Walker is so freakin' hot -- and 2. Paul Walker is so lying to our faces about his photo shoot in Hawaii. Okay, #2 might be debatable.

But we're pretty sure that was him oiled up in the sand, so ... a closer look couldn't hurt.

It was only 71 degrees on Staten Island yesterday, but Ashley Greene made it seem a whole lot hotter ... flashing some side boob in a teeny yellow bikini during a movie shoot in NY.

A pink and white beach blanket just barely managed to conceal the goods ... as Ashley filmed a scene for "Staten Island Summer" at the Great Kills Swim Club ... where some of the locals were used as extras.

The movie's about a couple of dudes who take jobs as lifeguards while trying to figure out what to do with their lives.

Why would you ever do anything else?

Arnold Schwarzenegger and Wladimir Klitschko have taken cyber-flirting to a whole new level ... exchanging topless selfies of each other ... and it's weird.

It all started last week, when Klitschko took off his shirt and did his best Arnold flexing impression in front of a classic photo of the bodybuilding legend (see below).

WK tweeted the pic at Arnold and included a note -- "Trying to catch u since I'm 12."

Arnold, obviously flattered by the pic tweeted back, "Great shot! It’s fantastic to see one of my favorite champions nailing my pose."

The weird part -- the 66-year-old added, "Right back at you" ... and attached a topless pic of himself doing a Klitschko impression in front of an old fight poster that featured the boxer.

Somewhere, Geraldo Rivera is super jealous.

There is a blonde woman in Hawaii who has a job MILLIONS of people would kill for -- OFFICIAL PAUL WALKER SIX-PACK OILER-UPPER!!!

Paul is in Oahu to star in an ad for Cool Water cologne ... and during the shoot, the photog decided the actor's stomach needed a little more shine.

Enter, the oil lady.

Besides the grease, the woman also got to feed Paul water from a bottle ... and then poured some H20 on his body .. 'cause, why not?

So how does one get that job? If we knew, we wouldn't be here.